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diode 74 and white fuse on logicboard

hi,

i need to repair a logic board and i need some help ;)

1_ Caracteristics and where can i buy the diode with 74 wrote on it ?

2_ caracteristics and where can i buy the white fuse or diode ? ( circled on the picture as white )

3_ i have a mark in the board ... what is this and if it s a big problem ? ( circled on the picture as red )

someone can help me ?

best regards

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Update

hi,

where can i find the motherboard number ?

and here more picture ...

diode 74 i need ...

and the mark near the lcd conector ...

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Update

where can i find the number on motherboard ?

Answered! View the answer I have this problem too

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What are the last three digits of the serial number for the computer that this is out of? also check for a 820-XXXX number on the motherboard.

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Can you also explain why you think you need these components? What happened to your system?

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It appears you have a noted the wrong device in your original diagram (White). As you now have a different component removed from your better pictures. So the information oldturkey gave you is not correct!

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Can you please tell us your last four digits of your serial number and explain what happened to your system so we can give you better information on what you should do.

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The layout of the board looks like motherboard 820-2530 The component is definitely not from the area pointed out in the original image, if it is a 820-2530. I most certainly did not mean to give the wrong information, my original answer was based on the original question and the image attached to it.

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david, let me try this gain, since you posted new images and apparently it was felt that I gave you the wrong answer. My answer was originally based on your first image. So, to clear it up, I labeled your new image and identified the parts. From your images the motherboard appears to be a 820-2530. The schematic and layout is based on this and is a perfect match.

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Number 1 on your image shows (in your case it does not show;-) the location for the Diode "74". That diode is D9701 SOD-123 RB160M-40. The RB160M-40 Series 40 V 30 µA Surface mount Schottky Barrier Diode available in SOD-123 Package. The datasheet for that diode is here. I do not know your geographical location, so I would check mouser.com or digikey.com as well as many others.

Number 2 on your image is of course the previously identified capacitor C9796 200PF 5% 100V CERM 1206 a Kemet CDR32BP201BJYS has those values. Again, you could check on Mouser.com or digikey.com as well as many other places.

Number 3 on your image shows interrupted/broken traces.

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It appears that they are part positive and negative polarity of your data lines. Depending on the damage, you may have to get the schematic of your connector and run some jumpers.

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Make that decision when you are ready to re-evaluate your repair.

Hope this helps, good luck.

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2 Comments:

thank you very much ...

now i will try to fixit ;)

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Thank you for accepting my answer. Best of luck to you.

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david will be eternally grateful.
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